133135542 has 16 divisors (see below), whose sum is σ = 295856880. Its totient is φ = 44378496.

The previous prime is 133135511. The next prime is 133135547. The reversal of 133135542 is 245531331.

133135542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133135547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232683 + ... + 1232790.

It is an arithmetic number, because the mean of its divisors is an integer number (18491055).

Almost surely, 2^133135542 is an apocalyptic number.

133135542 is an abundant number, since it is smaller than the sum of its proper divisors (162721338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133135542 is a wasteful number, since it uses less digits than its factorization.

133135542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465484 (or 2465478 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 133135542 is about 11538.4375892059. The cubic root of 133135542 is about 510.6202143057.

Adding to 133135542 its reverse (245531331), we get a palindrome (378666873).

The spelling of 133135542 in words is "one hundred thirty-three million, one hundred thirty-five thousand, five hundred forty-two".